# -*- coding:utf-8 -*-

from wtforms.validators import DataRequired, Length, Email, Regexp, ValidationError
from wtforms import StringField, SubmitField, TextAreaField, SelectField
from flask_wtf import FlaskForm
from ..models import Role, User
from flask_pagedown.fields import PageDownField


class NameForm(FlaskForm):
    name = StringField('What is your name?', validators=[DataRequired()])
    submit = SubmitField('Submit')


class EditProfileForm(FlaskForm):
    name = StringField('真实姓名', validators=[Length(0, 64)])
    location = StringField('城市', validators=[Length(0, 64)])
    about_me = TextAreaField('关于我')
    submit = SubmitField('提交')


class EditProfileAdminForm(FlaskForm):
    email = StringField('邮件地址', validators=[DataRequired(), Length(1, 64), Email()])
    username = StringField('用户名', validators=[DataRequired(), Length(1, 64), Regexp('^[A-Za-z][A-Za-z0-9_.]*$', message='只能包含数字、字母和下划线')])
    role = SelectField('角色', coerce=int)
    name = StringField('真实姓名', validators=[Length(0, 64)])
    location = StringField('城市', validators=[Length(0, 64)])
    about_me = TextAreaField('关于我')
    submit = SubmitField('提交')

    def __init__(self, user, *args, **kwargs):
        super(EditProfileAdminForm, self).__init__(*args, **kwargs)
        self.role.choices = [(role.id, role.name) for role in Role.query.order_by(Role.name).all()]
        self.user = user

    def validate_email(self, field):
        if not self.user.change_email(field.data):
            raise ValidationError('该邮箱已注册,请更换!')

    def validate_username(self, field):
        if field.data != self.user.username and User.query.filter_by(username=field.data).first():
            raise ValidationError('该用户名已注册,请更换!')


class PostForm(FlaskForm):
    body = PageDownField('有什么想说的[支持MarkDown]', validators=[DataRequired()])
    submit = SubmitField('提交')


class CommentForm(FlaskForm):
    body = TextAreaField('', validators=[DataRequired()])
    submit = SubmitField('提交')